Environmental modulation of androgen levels and secondary sex characters in two populations of the peacock blenny Salaria pavo
Morphology and endocrinology were studied in two populations of the peacock blenny Salaria pavo, with different regimes of sexual selection imposed by differences in nest site availability. The peacock blenny is a small, sexually dimorphic benthic fish that presents exclusive paternal care of the clutch and inhabits rocky shores of the Mediterranean and adjacent Atlantic […]
Species identity and the temporal characteristics of fish acoustic signals
Analyses of the acoustic signals of fish show that fine-scale temporal patterns of signals are what vary among species. A growing body of research addressing the topic of species differences in fish acoustic signals suggests that these differences are related to mate choice or species isolation. However, little behavioral work has been done to determine […]
Integrative studies of amphibians- from molecules to mating
Studies of reproductive behavior in amphibians have been especially successful in synthesizing data produced from molecular and physiological research with evolutionary parameters, such as measures of reproductive success. In particular, two relatively new areas of amphibian research are highly amenable to synthetic studies. One area is the nature of chemical communication by pheromone delivery in […]
Courtship and mate choice in fishes- integrating behavioral and sensory ecology
Sexual selection theory predicts a coevolution between male sexual ornamentation and female preference. The implication of this prediction for sensory ecology is that there should be a tight coupling between the physiology of male signal production and the physiology of female signal reception. Indicator models of sexual selection predict that male ornamentation is correlated with […]